Typically in a layout file, we can have numerous elements that specify the same constraint values to attributes. Such values should be added to a dimensions resource file. Let's go ahead and create a dimensions resource file now. In your application project view, navigate to res | values and create a new value resource file in the directory with the name dimens:
Leave all other file attributes at their default values:
Open the file upon its creation. Its content should be similar to the following code:
<?xml version="1.0" ...
